Dr. Gerardo Ávila Profile

Dr. Gerardo Ávila

Physicist at Baader Planetarium

SPIE Involvement:

Author

Publications (72)

Proceedings Article | 25 September 2024 Poster + Paper

Poster + Paper

MARVEL: an update on the four-telescope dedicated radial velocity facility at the Mercator Observatory

J. Pember, I. Argyriou, D. Atkinson, G. Ávila, L. Barrett, A. Brandeker, L. Buchhave, D. Coutts, W. De Meester, J. De Ridder, D. Defrère, A. Glasse, M. Güdel, M. Haidar, K. Hakim, S. Halverson, J. Harman, N. Jannsen, M. Janson, A. Kinney, S. Kovacs, R. Laugier, K. Missiaen, B. Montet, J. Morren, E. Palle, J. Pérez Padilla, W. Pessemier, D. Pollacco, B. Pope, S. Prins, A. Quirrenbach, G. Raskin, M. Reggiani, I. Ribas, H. Sana, C. Schwab, D. Seynaeve, R. Sharman, A. Stokes, J. Stürmer, A. Tkachenko, G. Tinetti, H. Van Winckel, B. Vandenbussche, C. Waring, R. Wittenmyer, D. Wright, Y. Zhou, D. Adams, N. Binos, J. Brzeski, Z. Cai, T. Chin, S. Ellis, T. Farrell, T. Feger, A. Ghari Zadeh, Y. Kripak, N. Kunwar, C. Lacombe, J. Lawrence, H. McGregor, D. Robertson, L. Waller, R. Zhelem

Proceedings Volume 13096, 130966B (2024) https://doi.org/10.1117/12.3021409

KEYWORDS: Telescopes, Spectrographs, Calibration, Fabry Perot interferometers, Observatories, Control systems, Sensors, Control software, Equipment, Domes

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Proceedings Article | 19 July 2024 Poster

Poster

The optical design of CUBES for the ESO VLT

Lawrence Bissell, Walter Seifert, Ariadna Calcines Rosario, Hans Dekker, Julian Stürmer, Matteo Genoni, Bruno Castilho, Gerardo Avila

Proceedings Volume 13096, 130966E (2024) https://doi.org/10.1117/12.3019166

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Proceedings Article | 18 July 2024 Poster + Paper

Poster + Paper

CUBES, the Cassegrain U-Band Efficient Spectrograph: towards final design review

Matteo Genoni, Hans Dekker, Stefano Covino, Roberto Cirami, Marcello Scalera, Lawrence Bissel, Walter Seifert, Ariadna Calcines, Gerardo Avila, Julian Stϋrmer, Christopher Ritz, David Lunney, Chris Miller, Stephen Watson, Chris Waring, Bruno Castilho, Marcio De Arruda, Orlando Verducci, Igor Coretti, Luca Oggioni, Giorgio Pariani, Edoardo A. M. Redaelli, Matteo D’ Ambrogio, Giorgio Calderone, Matteo Porru, Ingo Stilz, Rodolfo Smiljanic, Guido Cupani, Mariagrazia Franchini, Andrea Scaudo, Vincent Geers, Vincenzo De Caprio, Domenico D' Auria, Mina Sibalic, Cyrielle Opitom, Gabriele Cescutti, Valentina D’ Odorico, Ruben Sanchez-Janssen, Andreas Quirrenbach, Beatriz Barbuy, Stefano Cristiani, Paolo Di Marcantonio

Proceedings Volume 13096, 130967T (2024) https://doi.org/10.1117/12.3018288

KEYWORDS: Spectrographs, Design, Calibration, Sensors, Telescopes, Signal to noise ratio, Charge-coupled devices, Spectral resolution, Cameras

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Proceedings Article | 8 September 2022 Paper

Paper

MARVEL: optical fiber link

Gerardo Avila, Gert Raskin, Christian Schwab, Jacob Pember, Bart Vandenbussche, Hans Van Winckel, Carlos Guirao, Roman Guemperlein, Julian Stürmer

Proceedings Volume 12184, 121844G (2022) https://doi.org/10.1117/12.2627382

KEYWORDS: Telescopes, Seaborgium, Spectrographs, Near field, Fiber couplers, Vignetting, Silica, Polishing, Stars, Optical fibers

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Proceedings Article | 29 August 2022 Presentation

Presentation

MARVEL: the Mercator radial-velocity facility

Gert Raskin, Jacob Pember, Christian Schwab, Bart Vandenbussche, Gerardo Avila, Julian Stürmer, Hans Van Winckel, Denis Defrère, Pierre Royer, Andrew Tkachenko, Joris De Ridder, Hugues Sana, Joel Harman, William Humphreys, Robyn Sharman, Chris Waring, Alistair Glasse

Proceedings Volume 12184, 121841L (2022) https://doi.org/10.1117/12.2627381

KEYWORDS: Telescopes, Stars, Spectrographs, Robotics, Planets, Optical spectroscopy, Optical fibers, Observatories, Lanthanum, Exoplanets

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Proceedings Article | 5 August 2022 Poster + Paper

Poster + Paper

ESPRESSO Fiber-Link upgrade II: Optomechanical design

Edoardo Maria Alberto Redaelli, Matteo Aliverti, Matteo Genoni, Giorgio Pariani, Luca Oggioni, Marco Riva, Gerardo Avila, Bruno Chazelas, Ian Hughes, Francesco Pepe, Denis Mégevand

Proceedings Volume 11447, 114473S (2022) https://doi.org/10.1117/12.2562506

KEYWORDS: Spectrographs, Telescopes, Mirrors, Interfaces, Mechanical engineering, Glasses, Optomechanical design, Optics manufacturing, Optical design, Optical alignment

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Proceedings Article | 28 December 2020 Poster + Paper

Poster + Paper

ESPRESSO fiber-Link upgrade: III - alignment and integration activities

Matteo Aliverti, Giorgio Pariani, Gerardo Avila, Luca Oggioni, Edoardo Maria Alberto Redaelli, Marco Riva, Francesco Pepe, Ian Huges, Denis Megèvand, Bruno Chazelas, Felix Garcia Temich, Jose Luis Rasilla

Proceedings Volume 11447, 114474I (2020) https://doi.org/10.1117/12.2562129

KEYWORDS: Telescopes, Spectrographs, Super resolution

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Proceedings Article | 13 December 2020 Poster + Paper

Poster + Paper

A novel method for on-sky measurements of atmospheric dispersion

B. Wehbe, A. Cabral, G. Àvila

Proceedings Volume 11447, 114476R (2020) https://doi.org/10.1117/12.2561411

KEYWORDS: Atmospheric modeling, Zemax, Refractor telescopes, Telescopes, Refraction, Point spread functions, Spectroscopy, Data acquisition, Spectrographs

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Proceedings Article | 13 December 2020 Poster + Paper

Poster + Paper

MARVEL, a four-telescope array for high-precision radial-velocity monitoring

G. Raskin, C. Schwab, B. Vandenbussche, J. De Ridder, C. Lanthermann, J. Pérez Padilla, A. Tkachenko, H. Sana, P. Royer, S. Prins, L. Decin, D. Defrère, J. Pember, D. Atkinson, A. Glasse, D. Pollacco, G. Tinetti, M. Guedel, J. Stuermer, I. Ribas, A. Brandeker, L. Buchhave, S. Halverson, G. Avila, J. Morren, H. Van Winckel

Proceedings Volume 11447, 114473K (2020) https://doi.org/10.1117/12.2560895

KEYWORDS: Exoplanets, Stars, Atmospheric optics, Planets, Velocity measurements, Spectroscopic atmospheric monitoring techniques, Telescopes, Solar system, Infrared spectroscopy, Photometry

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Proceedings Article | 13 December 2020 Poster + Paper

Poster + Paper

ESPRESSO Fiber-Link upgrade. I: project overview and performances

M. Genoni, G. Pariani, G. Avila, M. Aliverti, L. Oggioni, E. M. A. Redaelli, M. Riva, F. Pepe, I. Hughes, D. Megèvand, B. Chazelas, F. G. Temich, J. L. Rasilla

Proceedings Volume 11447, 114473G (2020) https://doi.org/10.1117/12.2561464

KEYWORDS: Optical design, Spectrographs, Super resolution, Observatories, Optomechanical design, Reliability

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Proceedings Article | 3 October 2019 Paper

Paper

Atmospheric dispersion correction: model requirements and impact on radial velocity measurements

B. Wehbe, A. Cabral, P. Figueira, G. Ávila

Proceedings Volume 11207, 112070U (2019) https://doi.org/10.1117/12.2527256

KEYWORDS: Atmospheric modeling, Data modeling, Atmospheric corrections, Spectrographs, Dispersion, Data archive systems, Instrument modeling, Telescopes, Prisms, Data analysis

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Proceedings Article | 3 October 2019 Paper

Paper

ESPRESSO Coudé-Train: ESO's VLT working as 16-metre telescope

Alexandre Cabral, Manuel Abreu, João Coelho, Gerardo Ávila, Marco Riva, Denis Mégevand, Nuno Santos, Francesco Pepe

Proceedings Volume 11207, 112070V (2019) https://doi.org/10.1117/12.2527260

KEYWORDS: Telescopes, Prisms, Lenses, Mirrors, Spectrographs, Beam splitters, Image quality, Optical components, Observatories

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Proceedings Article | 3 October 2019 Paper

Paper

The development of an optical design tool for atmospheric dispersion correction

B. Wehbe, A. Cabral, G. Ávila

Proceedings Volume 11207, 112070P (2019) https://doi.org/10.1117/12.2527103

KEYWORDS: Glasses, Prisms, Atmospheric modeling, Atmospheric corrections, Atmospheric optics, Optical design, Spectrographs, Large telescopes, Telescopes, Astronomy

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Proceedings Article | 10 July 2018 Presentation + Paper

Presentation + Paper

Merging light beams from the 4 VLT telescopes

Felix Gracia Temich, José Luis Rasilla, Sergio Salata, Francesco Pepe, Gerardo Avila, Denis Mégevand, Rafael Rebolo, Marco Riva

Proceedings Volume 10706, 1070628 (2018) https://doi.org/10.1117/12.2312032

KEYWORDS: Telescopes, Spectrographs, Lenses, Near field optics, Near field, Optical fibers, Image quality, Camera shutters, Microlens, CCD cameras

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Proceedings Article | 8 July 2018 Paper

Paper

A fibre scrambling unit for the laser frequency comb of ESPRESSO

Christoph Frank, Florian Kerber, Gerardo Avila, Nicola Di Lieto, Gaspare Lo Curto, Antonio Manescau

Proceedings Volume 10702, 107026P (2018) https://doi.org/10.1117/12.2313484

KEYWORDS: Calibration, Spectrographs, Frequency combs, Observatories, Computer aided design, Exoplanets, Astronomy, Lamps, Light sources

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Proceedings Article | 9 August 2016 Paper

Paper

Relative stability of two laser frequency combs for routine operation on HARPS and FOCES

Rafael Probst, Gaspare Lo Curto, Gerardo Ávila, Anna Brucalassi, Bruno Canto Martins, Izan de Castro Leão, Massimiliano Esposito, Jonay González Hernández, Frank Grupp, Theodor Hänsch, Ronald Holzwarth, Hanna Kellermann, Florian Kerber, Olaf Mandel, Antonio Manescau , Luca Pasquini, Eszter Pozna, Rafael Rebolo, José Renan de Medeiros, Sebastian Stark, Tilo Steinmetz, Alejandro Suárez Mascareño, Thomas Udem, Josefina Urrutia, Yuanjie Wu

Proceedings Volume 9908, 990864 (2016) https://doi.org/10.1117/12.2231434

KEYWORDS: Spectrographs, Calibration, Frequency combs, Astronomy, Observatories, Multimode fibers, Telescopes, Lanthanum, Lamps, Precision calibration

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Proceedings Article | 4 August 2016 Paper

Paper

An overview of the mid-infrared spectro-interferometer MATISSE: science, concept, and current status

A. Matter, B. Lopez, P. Antonelli, M. Lehmitz, F. Bettonvil, U. Beckmann, S. Lagarde, W. Jaffe, R. Petrov, P. Berio, F. Millour, S. Robbe-Dubois, A. Glindemann, P. Bristow, M. Schoeller, T. Lanz, T. Henning, G. Weigelt, M. Heininger, S. Morel, P. Cruzalebes, K. Meisenheimer, R. Hofferbert, S. Wolf, Y. Bresson, T. Agocs, F. Allouche, J.-C. Augereau, G. Avila, C. Bailet, J. Behrend, G. van Belle, J.-P. Berger, R. van Boekel, P. Bourget, R. Brast, J.-M. Clausse, C. Connot, R. Conzelmann, G. Csepany, W. Danchi, M. Delbo, C. Dominik, A. van Duin, E. Elswijk, Y. Fantei, G. Finger, A. Gabasch, F. Gonté, U. Graser, F. Guitton, S. Guniat, M. De Haan, P. Haguenauer, H. Hanenburg, K.-H. Hofmann, M. Hogerheijde, R. ter Horst, J. Hron, C Hummel, J. Isderda, D. Ives, G. Jakob, A. Jasko, P. Jolley, S. Kiraly, J. Kragt, T. Kroener, G. Kroes, S. Kuindersma, L. Labadie, W. Laun, C. Leinert, J.-L. Lizon, C. Lucuix, A. Marcotto, F. Martinache, G. Martinot-Lagarde, N. Mauclert, L. Mehrgan, A. Meilland, M. Mellein, S. Menardi, A. Merand, U. Neumann, E. Nussbaum, S. Ottogalli, R. Palsa, J. Panduro, E. Pantin, I. Percheron, T. Phan Duc, J.-U. Pott, E. Pozna, R. Roelfsema, G. Rupprecht, D. Schertl, C. Schmidt, M. Schuil, A. Spang, J. Stegmeier, N. Tromp, F. Vakili, M. Vannier, K. Wagner, L. Venema, J. Woillez

Proceedings Volume 9907, 99070A (2016) https://doi.org/10.1117/12.2233052

KEYWORDS: Mid-IR, Interferometry, Telescopes, Signal detection, Sensors, Stars, Spectral resolution, Fourier transforms, L band, Cameras

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Proceedings Article | 4 August 2016 Paper

Paper

VLT interferometer upgrade for the 2nd generation of interferometric instruments

Frederic Gonté, Julien Woillez, Nicolas Schuhler, Sebastian Egner, Antoine Merand, José Antonio Abad, Sergio Abadie, Roberto Abuter, Margarita Acuña, Fatmé Allouche, Jaime Alonso, Luigi Andolfalto, Pierre Antonelli, Gerardo Avila, Pablo José Barriga, Juan Beltran, Jean-Philippe Berger, Carlos Bolados, Henri Bonnet, Pierre Bourget, Roland Brast, Paul Bristow, Luis Caniguante, Roberto Castillo, Ralf Conzelmann, Angela Cortes, Françoise Delplancke, Diego Del Valle, Frederic Derie, Alvaro Diaz, Reinaldo Donoso, Reinhold Dorn, Philippe Duhoux, Christophe Dupuy, Frank Eisenhauer, Christian Elao, Eloy Fuenteseca, Ruben Fernandez, Daniel Gaytan, Andreas Glindemann, Jaime Gonzales, Sylvain Guieu, Stephane Guisard, Pierre Haguenauer, Andreas Haimerl, Volker Heinz, Juan Pablo Henriquez, P. van der Heyden, Norbert Hubin, Rodrigo Huerta, Lieselotte Jochum, Alfredo Leiva, Samuel Lévêque, Jean-Louis Lizon, Fernando Luco, Pedro Mardones, Angel Mellado, Juan Osorio, Jürgen Ott, Laurent Pallanca, Marcus Pavez, Luca Pasquini, Isabelle Percheron, Jean-Francois Pirard, Duc Than Phan, Juan Carlos Pineda, Andres Pino, Sebastien Poupar, Andres Ramírez, Claudio Reinero, Miguel Riquelme, Juan Romero, Thomas Rivinius, Chester Rojas, Felix Rozas, Fernando Salgado, Silvia Scheithauer, Christian Schmid, Markus Schöller, Waldo Siclari, Christian Stephan, Richard Tamblay, Mario Tapia, Konrad Tristram, Guillermo Valdes, Willem-Jan de Wit, Andrew Wright, Gerard Zins

Proceedings Volume 9907, 99071Z (2016) https://doi.org/10.1117/12.2233350

KEYWORDS: Interferometry, Adaptive optics, Telescopes, Interferometers, Stars, Infrared radiation, Interferometry, Astatine, Mirrors, Mid-IR, Sensors

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Proceedings Article | 22 July 2016 Paper

Paper

Design, development, and performance of the fibres of MOONS

Isabelle Guinouard, Gerardo Avila, David Lee, Jean-Philippe Amans, Phil Rees, William Taylor, Ernesto Oliva

Proceedings Volume 9912, 99125G (2016) https://doi.org/10.1117/12.2231413

KEYWORDS: Spectrographs, Optical instrument design, Astronomical imaging, Large telescopes, Microlens, Prototyping, Connectors, Manufacturing, Telescopes, Cladding

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Proceedings Article | 22 July 2016 Paper

Paper

Alignment of the ESPRESSO Coudé train on the ESO VLT

Gerardo Avila, Alexandre Cabral, Joao Pinto Coelho, Pedro Santos, Catarina Silva, Bernard Delabre, Denis Megevand, Manuel Abreu, Antonio Oliveira, Marco Riva, M. Aliverti, G. Pariani

Proceedings Volume 9912, 99124L (2016) https://doi.org/10.1117/12.2231597

KEYWORDS: Optical alignment, Telescopes, Spectrographs, Tolerancing, Prisms, Beam splitters, Cameras, Image quality, Mirrors, Laser video displays

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Proceedings Article | 28 July 2014 Paper

Paper

ESPRESSO Coudé-Train: complexities of a simultaneous optical feeding from the four VLT unit telescopes

Alexandre Cabral, Manuel Abreu, João Coelho, Ricardo Gomes, Manuel Monteiro, António Oliveira, Pedro Santos, Gerardo Ávila, Bernard-Alexis Delabre, Marco Riva, Paolo Di Marcantonio, Igor Coretti, Nuno Santos, Filippo Zerbi, Denis Mégevand

Proceedings Volume 9147, 91478Q (2014) https://doi.org/10.1117/12.2055876

KEYWORDS: Prisms, Telescopes, Spectrographs, Mirrors, Lenses, Optics manufacturing, Control systems, Chromium, Atmospheric optics, Optical design

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Proceedings Article | 24 July 2014 Paper

Paper

MATISSE status report and science forecast

B. Lopez, S. Lagarde, W. Jaffe, R. Petrov, M. Schöller, P. Antonelli, U. Beckman, Ph. Bério, F. Bettonvil, U. Graser, F. Millour, S. Robbe-Dubois, L. Venema, S. Wolf, P. Bristow, A. Glindemann, J.-C. Gonzalez, Th. Lanz, T. Henning, G. Weigelt, T. Agócs, J.-C. Augereau, G. Ávila, C. Bailet, J. Behrend, J.-P. Berger, Roy von Boekel, S. Bonhomme, P. Bourget, R. Brast, Y. Bresson, J. Clausse, O. Chesneau, G. Csépány, C. Connot, A. Crida, W. Danchi, M. Delbo , F. Delplancke, C. Dominik, M. Dugué, E. Elswijk, Y. Fanteï, G. Finger, A. Gabasch, P. Girard, V. Girault, P. Gitton, A. Glazenborg, F. Gonté, F. Guitton, S. Guniat, M. De Haan, P. Haguenauer, H. Hanenburg, M. Heininger, K.-H. Hofmann, M. Hogerheijde, R. ter Horst, J. Hron, Y. Hughes, D. Ives, G. Jakob, A. Jaskó, P. Jolley, J. Kragt, R. Köhler, T. Kroener, G. Kroes, L. Labadie, W. Laun, M. Lehmitz, Ch. Leinert, J. Lizon, Ch. Lucuix, A. Marcotto, F. Martinache, A. Matter, G. Martinot-Lagarde, N. Mauclert, L. Mehrgan, A. Meilland, M. Mellein, S. Ménardi, J. Menut, K. Meisenheimer, S. Morel, L. Mosoni, R. Navarro, U. Neumann, E. Nussbaum, S. Ottogalli, R. Palsa, J. Panduro, E. Pantin, I. Percheron, T. Phan Duc, J.-U. Pott, Eszter Pozna, F. Przygodda, A. Richichi, F. Rigal, G. Rupprecht, D. Schertl, J. Stegmeier, L. Thiam, N. Tromp, M. Vannier, F. Vakili, G. van Belle, K. Wagner, J. Woillez

Proceedings Volume 9146, 91460M (2014) https://doi.org/10.1117/12.2056419

KEYWORDS: Interferometry, Sensors, Mid-IR, Stars, Telescopes, Visibility, Planets, Spectral resolution, Photometry, Fourier transforms

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Proceedings Article | 8 July 2014 Paper

Paper

A laser frequency comb featuring sub-cm/s precision for routine operation on HARPS

Rafael Probst, Gaspare Lo Curto, Gerardo Avila, Bruno Canto Martins, José de Medeiros, Massimiliano Esposito, Jonay González Hernández, Theodor Hänsch, Ronald Holzwarth, Florian Kerber, Izan Leão, Antonio Manescau, Luca Pasquini, Rafael Rebolo-López, Tilo Steinmetz, Thomas Udem, Yuanjie Wu

Proceedings Volume 9147, 91471C (2014) https://doi.org/10.1117/12.2055784

KEYWORDS: Spectrographs, Continuous wave operation, Calibration, Optical filters, Frequency combs, Linear filtering, Astronomy, Fiber lasers, Charge-coupled devices, Fiber amplifiers

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Proceedings Article | 8 July 2014 Paper

Paper

ESPRESSO: the radial velocity machine for the VLT

Denis Mégevand, Filippo Zerbi, Paolo Di Marcantonio, Alexandre Cabral, Marco Riva, Manuel Abreu, Francesco Pepe, Stefano Cristiani, Rafael Rebolo Lopez, Nuno Santos, Hans Dekker, Matteo Aliverti, Carlos Allende, Manuel Amate, Gerardo Avila, Veronica Baldini, Timothy Bandy, Paul Bristow, Christopher Broeg, Roberto Cirami, João Coelho, Paolo Conconi, Igor Coretti, Guido Cupani, Valentina D'Odorico, Vincenzo De Caprio, Bernard Delabre, Reinhold Dorn, Pedro Figueira, Ana Fragoso, Samuele Galeotta, Ludovic Genolet, Ricardo Gomes, Jonay González Hernández, Ian Hughes, Olaf Iwert, Florian Kerber, Marco Landoni, Jean-Louis Lizon, Christophe Lovis, Charles Maire, Marco Mannetta, Carlos Martins, Paolo Molaro, Manuel Monteiro, Manuele Moschetti, Antonio Oliveira, Maria Rosa Zapatero Osorio, Ennio Poretti, José Rasilla, Samuel Santana Tschudi, Pedro Santos, Danuta Sosnowska, Sérgio Sousa, Fabio Tenegi, Giorgio Toso, Eros Vanzella, Matteo Viel

Proceedings Volume 9147, 91471H (2014) https://doi.org/10.1117/12.2055816

KEYWORDS: Spectrographs, Telescopes, Optical fibers, Sensors, Astronomy, Control systems, Observatories, Exoplanets, Calibration, Light

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Proceedings Article | 18 November 2013 Paper

Paper

Optical design of a Coudé-Train for a stable and efficient simultaneous feeding of the ESPRESSO spectrograph from the four VLT telescopes

Alexandre Cabral, João Coelho, Manuel Abreu, Manuel Monteiro, Ricardo Gomes, Pedro Santos, António Oliveira, Gerardo Ávila, Bernard-Alexis Delabre, Denis Mégevand, Filippo Zerbi, Paolo Di Marcantonio, Christophe Lovis, Nuno Santos

Proceedings Volume 8785, 87850L (2013) https://doi.org/10.1117/12.2026179

KEYWORDS: Prisms, Telescopes, Spectrographs, Lenses, Optical design, Atmospheric optics, Chromium, Control systems, Light sources, Interfaces

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Proceedings Article | 26 September 2013 Paper

Paper

ESPRESSO, an exo-Earths hunter for the VLT

Denis Mégevand, Filippo Zerbi, Paolo Di Marcantonio, Alexandre Cabral, Francesco Pepe, Stefano Cristiani, Rafael Rebolo, Nuno Santos, Hans Dekker, Manuel Abreu, Michael Affolter, Matteo Aliverti, Manuel Amate, Gerardo Avila, Veronica Baldini, Paul Bristow, Christopher Broeg, Roberto Cirami, João Coelho, Paolo Conconi, Igor Coretti, Guido Cupani, Valentina D'Odorico, Vincenzo De Caprio, Bernard Delabre, Reinhold Dorn, Pedro Figueira, Ana Fragoso, Samuele Galeotta, Ludovic Genolet, Ricardo Gomes, Jonay Gonzalez Hernandez, Ian Hughes, Olaf Iwert, Florian Kerber, Marco Landoni, Jean-Louis Lizon, Christophe Lovis, Charles Maire, Marco Mannetta, Carlos Martins, Paolo Molaro, Manuel Monteiro, Antonio Oliveira, Maria Rosa Zapatero Osorio, Ennio Poretti, José Luis Rasilla, Marco Riva, Samuel Santana Tschudi, Pedro Santos, Danuta Sosnowska, Sergio Sousa, Fabio Tenegi, Giorgio Toso, Eros Vanzella, Matteo Viel

Proceedings Volume 8864, 88640E (2013) https://doi.org/10.1117/12.2022520

KEYWORDS: Spectrographs, Stars, Telescopes, Planets, Galactic astronomy, Astronomy, Sensors, Exoplanets, Control systems, Observatories

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Proceedings Article | 24 September 2012 Paper

Paper

ESPRESSO: the ultimate rocky exoplanets hunter for the VLT

Denis Mégevand, Filippo Zerbi, Alexandre Cabral, Paolo Di Marcantonio, Manuel Amate, Francesco Pepe, Stefano Cristiani, Rafael Rebolo, Nuno Santos, Hans Dekker, Manuel Abreu, Michael Affolter, Gerardo Avila, Veronica Baldini, Paul Bristow, Christopher Broeg, Pedro Carvas, Roberto Cirami, João Coelho, Maurizio Comari, Paolo Conconi, Igor Coretti, Guido Cupani, Valentina D'Odorico, Vincenzo De Caprio, Bernard Delabre, Pedro Figueira, Michel Fleury, Ana Fragoso, Ludovic Genolet, Ricardo Gomes, Jonay Gonzalez Hernandez, Ian Hughes, Olaf Iwert, Florian Kerber, Marco Landoni, Jorge Lima, Jean-Louis Lizon, Christophe Lovis, Charles Maire, Marco Mannetta, Carlos Martins, André Moitinho, Paolo Molaro, Manuel Monteiro, José Luis Rasilla, Marco Riva, Samuel Santana Tschudi, Paolo Santin, Danuta Sosnowska, Sergio Sousa, Paolo Spanò, Fabio Tenegi, Giorgio Toso, Eros Vanzella, Matteo Viel, Maria Rosa Zapatero Osorio

Proceedings Volume 8446, 84461R (2012) https://doi.org/10.1117/12.924602

KEYWORDS: Spectrographs, Exoplanets, Telescopes, Astronomy, Planets, Optical fibers, Sensors, Observatories, Stars, Calibration

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Proceedings Article | 24 September 2012 Paper

Paper

High efficiency inexpensive 2-slices image slicers

Gerardo Avila, Carlos Guirao, Thomas Baader

Proceedings Volume 8446, 84469M (2012) https://doi.org/10.1117/12.927448

KEYWORDS: Mirrors, Spectrographs, Glasses, Reflection, Prisms, Prototyping, Spectral resolution, Manufacturing, Telescopes, Refractive index

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Proceedings Article | 24 September 2012 Paper

Paper

Achieving a few cm/sec calibration repeatability for high resolution spectrographs: the laser frequency comb on HARPS

Gaspare Lo Curto, Antonio Manescau, Gerardo Avila, Luca Pasquini, Tobias Wilken, Tilo Steinmetz, Ronald Holzwarth, Rafael Probst, Thomas Udem, Theodor Hänsch, Jonay González Hernández, Massimiliano Esposito, Rafael Rebolo, Bruno Canto Martins, Jose Renan de Medeiros

Proceedings Volume 8446, 84461W (2012) https://doi.org/10.1117/12.925964

KEYWORDS: Calibration, Spectrographs, Frequency combs, Stars, Telescopes, Planets, Lamps, Astronomy, Prototyping, High power fiber amplifiers

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Proceedings Article | 24 September 2012 Paper

Paper

FRD and scrambling properties of recent non-circular fibres

Gerardo Avila

Proceedings Volume 8446, 84469L (2012) https://doi.org/10.1117/12.927447

KEYWORDS: Spectrographs, Point spread functions, Stars, Near field optics, Near field, Cladding, Seaborgium, Optical fibers, Sensors, Shape memory alloys

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Proceedings Article | 17 September 2012 Paper

Paper

ESPRESSO: design and analysis of a Coudé-train for a stable and efficient simultaneous optical feeding from the four VLT unit telescopes

Alexandre Cabral, André Moitinho, João Coelho, Jorge Lima, Gerardo Ávila, Bernard-Alexis Delabre, Ricardo Gomes, Denis Mégevand, Filippo Zerbi, Paolo Di Marcantonio, Christophe Lovis, Nuno Santos

Proceedings Volume 8444, 84444F (2012) https://doi.org/10.1117/12.926093

KEYWORDS: Prisms, Telescopes, Optical fibers, Lenses, Spectrographs, Glasses, Chromium, Interfaces, Mirrors, Atmospheric optics

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Proceedings Article | 12 September 2012 Paper

Paper

Perspective of imaging in the mid-infrared at the Very Large Telescope Interferometer

B. Lopez, S. Lagarde, P. Antonelli, W. Jaffe, R. Petrov, L. Venema, Sylvie Robbe-Dubois, F. Bettonvil, P. Berio, R. Navarro, U. Graser, U. Beckman, G. Weigelt, F. Vakili, T. Henning, J.-C. Gonzales, S. Wolf, C. Bailet, J. Behrend, Y. Bresson, O. Chesneau, J. Clausse, C. Connot, M. Dugué, Y. Fantei, E. Elswijk, H. Hanenburg, K. Hofmann, M. Heininger, R. ter Horst, J. Hron, J. Kragt, N. Tromp, T. Agocs, G. Kroes, W. Laun, Ch. Leinert, M. Lehmitz, A. Matter, J. Menut, F. Millour, U. Neumann, E. Nussbaum, S. Ottogalli, J.-U. Pott, F. Rigal, A. Roussel, D. Schertl, M. Vannier, K. Wagner, M. Mellein, T. Kroener, N. Mauclert, P. Girard, G. Lagarde, L. Mosoni, A. Jasko, A. Glindemann, T. Phan Duc, G. Finger, D. Ives, G. Jakob, I. Percheron, G. Avila, R. Palsa, Eszter Pozna, J. Lizon, Ch. Lucuix, S. Menardi, P. Haguenauer, P. Gitton, S. Morel, F. Gonté, P. Jolley, G. Rupprecht, P. Bourget, F. Delplancke, L. Mehrgan, J. Stegmeier, G. van Belle, A. Richichi, A. Moorwood

Proceedings Volume 8445, 84450R (2012) https://doi.org/10.1117/12.926238

KEYWORDS: Interferometry, Sensors, Visibility, Mid-IR, L band, Telescopes, Spectral resolution, Image restoration, Interferometers, Photometry

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Proceedings Article | 15 September 2011 Paper

Paper

Higher-precision radial velocity measurements with the SOPHIE spectrograph using octagonal-section fibers

S. Perruchot, F. Bouchy, B. Chazelas, R. Díaz, G. Hébrard, K. Arnaud, L. Arnold, G. Avila, X. Delfosse, I. Boisse, G. Moreaux, F. Pepe, Y. Richaud, A. Santerne, R. Sottile, D. Tézier

Proceedings Volume 8151, 815115 (2011) https://doi.org/10.1117/12.892466

KEYWORDS: Optical fibers, Spectrographs, Telescopes, Stars, Near field, Calibration, Exoplanets, Velocity measurements, Fusion splicing, Vignetting

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Proceedings Article | 7 August 2010 Paper

Paper

Support for site testing of the European Extremely Large Telescope: precipitable water vapor over La Silla

Richard Querel, Florian Kerber, Gaspare Lo Curto, Joanna Thomas-Osip, Gabriel Prieto, Arlette Chacón, Omar Cuevas, Diana Pozo, Julio Marín, David Naylor, Michel Curé, Marc Sarazin, Carlos Guirao, Gerardo Avila

Proceedings Volume 7733, 773349 (2010) https://doi.org/10.1117/12.856480

KEYWORDS: Lanthanum, Observatories, Atmospheric modeling, Satellites, Telescopes, Radiometry, Spectroscopy, Space telescopes, Atmospheric optics, Infrared spectroscopy

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Proceedings Article | 21 July 2010 Paper

Paper

Results on fibre scrambling for high accuracy radial velocity measurements

Gerardo Avila, Paul Singh, Bruno Chazelas

Proceedings Volume 7735, 773588 (2010) https://doi.org/10.1117/12.861537

KEYWORDS: Seaborgium, Stars, Spectrographs, Telescopes, Near field, Point spread functions, Crystals, Beam homogenizers, Cladding, Velocity measurements

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Proceedings Article | 20 July 2010 Paper

Paper

HARPS secondary guiding

G. Ihle, G. Avila, I. Kastinen, G. Lo Curto, A. Segovia, P. Sinclaire, R. Tomelleri

Proceedings Volume 7739, 77393R (2010) https://doi.org/10.1117/12.857010

KEYWORDS: Glasses, Telescopes, Optical fibers, Space telescopes, Stars, Spectrographs, Head, Control systems, Lanthanum, Interfaces

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Proceedings Article | 20 July 2010 Paper

Paper

New scramblers for precision radial velocity: square and octagonal fibers

Bruno Chazelas, Francesco Pepe, François Wildi, Francois Bouchy, Sandrine Perruchot, Gerardo Avila

Proceedings Volume 7739, 773947 (2010) https://doi.org/10.1117/12.856874

KEYWORDS: Optical fibers, Near field, Charge-coupled devices, Connectors, Cladding, Calibration, Near field optics, Imaging systems, Observatories, Telescopes

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Proceedings Article | 20 July 2010 Paper

Paper

ESPRESSO: design and analysis of Coudé-Train concepts for stable and efficient optical feeding

Alexandre Cabral, André Moitinho, João Coelho, Jorge Lima, Pedro Carvas, Antonio Amorim, José Rebordão, Gerardo Ávila, Denis Mégevand, José-Miguel Herreros, Filippo Zerbi, Paolo Di Marcantonio, Christophe Lovis, Nuno Santos, Francesco Pepe, Stefano Cristiani, Rafael Rebolo

Proceedings Volume 7739, 77393W (2010) https://doi.org/10.1117/12.856901

KEYWORDS: Optical fibers, Prisms, Mirrors, Spectrographs, Telescopes, Glasses, Lenses, Cameras, Optical components, Optical design

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Proceedings Article | 20 July 2010 Paper

Paper

PUCHEROS: a low-cost fiber-fed Echelle Spectrograph for the visible spectral range

Leonardo Vanzi, Juan Chacon, Maurizio Baffico, Gerardo Avila, Carlos Guirao, Thomas Rivinius, Stan Stefl, Dietrich Baade

Proceedings Volume 7735, 77354R (2010) https://doi.org/10.1117/12.857020

KEYWORDS: Spectrographs, Telescopes, Prisms, Collimators, Charge-coupled devices, Calibration, Spectral resolution, Stars, Cameras, Observatories

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Proceedings Article | 20 July 2010 Paper

Paper

Design of Echelle Spectrograph for small telescopes with commercially available components

Juan Chacón, Leonardo Vanzi, Gerardo Avila

Proceedings Volume 7735, 77354S (2010) https://doi.org/10.1117/12.857068

KEYWORDS: Spectrographs, Telescopes, Charge-coupled devices, Prisms, Image resolution, Collimators, Optical instrument design, Zemax, Optical design, Objectives

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Proceedings Article | 15 July 2010 Paper

Paper

CODEX

Luca Pasquini, Stefano Cristiani, Ramón García López, Martin Haehnelt, Michel Mayor, Jochen Liske, Antonio Manescau, Gerardo Avila, Hans Dekker, Olaf Iwert, Bernard Delabre, Gaspare Lo Curto, Valentina D'Odorico, Paolo Molaro, Matteo Viel, Eros Vanzella, Piercarlo Bonifacio, Paolo Di Marcantonio, Paolo Santin, Maurizio Comari, Roberto Cirami, Igor Coretti, Filippo Maria Zerbi, Paolo Spanò, Marco Riva, Rafael Rebolo, Garik Israelian, Artemio Herrero, Maria Rosa Zapatero Osorio, Fabio Tenegi, Bob Carswell, George Becker, Stephane Udry, Francesco Pepe, Christophe Lovis, Dominique Naef, Miroslava Dessauges, Denis Mégevand

Proceedings Volume 7735, 77352F (2010) https://doi.org/10.1117/12.856974

KEYWORDS: Spectrographs, Calibration, Sensors, Planets, Astronomy, Stars, Galactic astronomy, Physics, Doppler effect, Spectroscopy

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Proceedings Article | 15 July 2010 Paper

Paper

ESPRESSO: the Echelle spectrograph for rocky exoplanets and stable spectroscopic observations

Francesco Pepe, Stefano Cristiani, Rafael Rebolo Lopez, Nuno Santos, Antonio Amorim, Gerardo Avila, Willy Benz, Piercarlo Bonifacio, Alexandre Cabral, Pedro Carvas, Roberto Cirami, João Coelho, Maurizio Comari, Igor Coretti, Vincenzo De Caprio, Hans Dekker, Bernard Delabre, Paolo Di Marcantonio, Valentina D'Odorico, Michel Fleury, Ramón García, José Miguel Herreros Linares, Ian Hughes, Olaf Iwert, Jorge Lima, Jean-Louis Lizon, Gaspare Lo Curto, Christophe Lovis, Antonio Manescau, Carlos Martins, Denis Mégevand, André Moitinho, Paolo Molaro, Mario Monteiro, Manuel Monteiro, Luca Pasquini, Christoph Mordasini, Didier Queloz, José Rasilla, José Rebordão, Samuel Santana Tschudi, Paolo Santin, Danuta Sosnowska, Paolo Spanò, Fabio Tenegi, Stéphane Udry, Eros Vanzella, Matteo Viel, Maria Rosa Zapatero Osorio, Filippo Zerbi

Proceedings Volume 7735, 77350F (2010) https://doi.org/10.1117/12.857122

KEYWORDS: Spectrographs, Exoplanets, Planets, Stars, Optical fibers, Spectroscopy, Telescopes, Spectroscopes, Astronomy, Spectral resolution

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Proceedings Article | 15 July 2010 Paper

Paper

Along the path towards extremely precise radial velocity measurements

Gaspare Lo Curto, Christophe Lovis, Tobias Wilken, Gerardo Avila, Bruno Chazelas, Massimiliano Esposito, Theodor Hänsch, Jonay Gonzáez-Hernández, Ronald Holzwarth, Gerardo Ihle, Antonio Manescau, Luca Pasquini, Francesco Pepe, Rafael Rebolo, Alex Segovia, Peter Sinclaire, Tilo Steinmetz, Thomas Udem, François Wildi

Proceedings Volume 7735, 77350Z (2010) https://doi.org/10.1117/12.857232

KEYWORDS: Calibration, Spectrographs, Telescopes, Stars, Planets, Velocity measurements, Frequency combs, Lamps, Lanthanum, Sensors

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Proceedings Article | 25 July 2008 Paper

Paper

Optical fiber scrambling and light pipes for high accuracy radial velocities measurements

G. Avila, P. Singh

Proceedings Volume 7018, 70184W (2008) https://doi.org/10.1117/12.789509

KEYWORDS: Telescopes, Near field optics, Stars, Spectrographs, Point spread functions, Velocity measurements, Optical fibers, Beam splitters, Beam homogenizers, Collimators

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Proceedings Article | 23 July 2008 Paper

Paper

Thermal gradient analysis for the ESOPO spectrograph

A. Farah, J. Jesús González, G. Sierra, J. Hernández, M. Pedrayes, J. Echevarría, R. Costero, G. Avila, M. Arroyo, F. Cobos, E. Colorado, A. Cordova, O. Chapa, B. Garcia, F. Garfias, F. Granados, G. Guisa, E. Luna, B. Martínez, R. Michel, F. Murillo, F. Pérez, S. Quechol, F. Quirós, C. Tejada

Proceedings Volume 7014, 70146Y (2008) https://doi.org/10.1117/12.790213

KEYWORDS: Spectrographs, Finite element methods, 3D modeling, Temperature metrology, Solid modeling, Interfaces, Computer aided design, Convection, Telescopes, Cameras

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Proceedings Article | 11 July 2008 Paper

Paper

Slit-mask, acquisition, and guiding zone mechanisms of the ESOPO spectrograph

M. Pedrayes, J. Gonzalez, E. Luna, F. Quiroz, G. Sierra, M. Arroyo, G. Avila, F. Cobos, E. Colorado, A. Córdova, R. Costero, O. Chapa, J. Echevarria, A. Farah, B. García, F. Garfias, G. Guisa, F. Granados, B. Martínez, R. Michel, F. Murillo, J. Murillo, S. Quechol, C. Tejada

Proceedings Volume 7014, 70145H (2008) https://doi.org/10.1117/12.789867

KEYWORDS: Spectrographs, Telescopes, Finite element methods, Cameras, Sensors, Calibration, Tolerancing, Actuators, Error analysis, Space telescopes

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Proceedings Article | 11 July 2008 Paper

Paper

Optical design of the VLT Coudé path for visible-range instrumentation

G. Avila

Proceedings Volume 7014, 70145B (2008) https://doi.org/10.1117/12.789442

KEYWORDS: Telescopes, Mirrors, Collimators, Prisms, Optical design, Image quality, Observatories, Stars, Interferometry, Glasses

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Proceedings Article | 11 July 2008 Paper

Paper

Structure of the spectrograph ESOPO

G. Sierra, A. Farah, J. Gonzalez, M. Pedrayes, M. Arroyo, G. Avila, F. Cobos, E. Colorado, A. Córdova, R. Costero, O. Chapa, J. Echevarria, B. García, F. Garfias, G. Guisa, F. Granados, E. Luna, B. Martínez, R. Michel, F. Murillo, J. Murillo, S. Quechol, F. Quiroz, C. Tejada

Proceedings Volume 7014, 70145G (2008) https://doi.org/10.1117/12.789683

KEYWORDS: Finite element methods, Tolerancing, Mechanical engineering, Computer aided design, Spectrographs, Cameras, Error analysis, Optical components, Telescopes, Image processing

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Proceedings Article | 10 July 2008 Paper

Paper

Observatorio UC at Santa Martina: a small observing facility operated by PUC

M. Baffico, G. Avila, D. Baade, E. Bendek, C. Guirao, O. Gonzalez, P. Marchant, V. Salas, I. Toledo, S. Vasquez, L. Vanzi

Proceedings Volume 7012, 70122O (2008) https://doi.org/10.1117/12.788050

KEYWORDS: Telescopes, Control systems, Stars, Observatories, Servomechanisms, Computer programming, Telecommunications, Spectrographs, Astronomy, Astrophysics

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Proceedings Article | 9 July 2008 Paper

Paper

CODEX: the high-resolution visual spectrograph for the E-ELT

Luca Pasquini, G. Avila, H. Dekker, B. Delabre, S. D'Odorico, A. Manescau, M. Haehnelt, B. Carswell, R. Garcia-Lopez, R. Lopez, M. Osorio, R. Rebolo, S. Cristiani, P. Bonifacio, V. D'Odorico, P. Molaro, P. Spanò, F. Zerbi, Michel Mayor, M. Dessauges, D. Megevand, F. Pepe, Didier Queloz, S. Udry

Proceedings Volume 7014, 70141I (2008) https://doi.org/10.1117/12.787936

KEYWORDS: Spectrographs, Calibration, Sensors, Telescopes, Spectral resolution, Cameras, Visualization, Doppler effect, Monte Carlo methods, Optical design

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Proceedings Article | 9 July 2008 Paper

Paper

New design approaches for a very high resolution spectrograph for the combined focus of the VLT

Paolo Spanò, Bernard Delabre, Hans Dekker, Gerardo Avila

Proceedings Volume 7014, 70140M (2008) https://doi.org/10.1117/12.789283

KEYWORDS: Spectrographs, Telescopes, Collimators, Sensors, Mirrors, Cameras, Spectral resolution, Optical design, Calibration, Large telescopes

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Proceedings Article | 9 July 2008 Paper

Paper

The spectrograph ESOPO: scientific goals, high-level requirements, and introduction to the design

J. Echevarría, A. Farah, R. Costero, J. González, G. Avila, M. Arroyo, F. Cobos, E. Colorado, A. Córdova, O. Chapa, B. García, F. Garfias, F. Granados, G. Guisa, E. Luna, B. Martínez, R. Michel, F. Murillo, M. Pedrayes, F. Pérez, S. Quechol, F. Quirós, G. Sierra, C. Tejada

Proceedings Volume 7014, 70140P (2008) https://doi.org/10.1117/12.790217

KEYWORDS: Spectrographs, Spectral resolution, Sensors, Optical design, Cameras, Telescopes, Galactic astronomy, Astronomy, Control systems, Neon

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Proceedings Article | 11 July 2006 Paper

Paper

Implementation of interference filters in the UV-Visual Echelle Spectrograph (UVES)

S. Hubrig, G. Avila, A. Kaufer, S. D'Odorico, H. Dekker, R. Schmutzer, M. Marchesi, B. Wolff, N. Nesvacil

Proceedings Volume 6269, 62692S (2006) https://doi.org/10.1117/12.670712

KEYWORDS: Interference filters, Spectrographs, Vignetting, Calibration, Astronomy, Spectroscopy, Optical filters, Telescopes, Galactic astronomy, Observatories

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Proceedings Article | 4 July 2006 Paper

Paper

First light of the ESO laser guide star facility

D. Bonaccini Calia, E. Allaert, J. Alvarez, C. Araujo Hauck, G. Avila, E. Bendek, B. Buzzoni, M. Comin, M. Cullum, R. Davies, M. Dimmler, I. Guidolin, W. Hackenberg, S. Hippler, S. Kellner, A. van Kesteren, F. Koch, U. Neumann, T. Ott, D. Popovic, F. Pedichini, M. Quattri, J. Quentin, S. Rabien, A. Silber, M. Tapia

Proceedings Volume 6272, 627207 (2006) https://doi.org/10.1117/12.674484

KEYWORDS: Telescopes, Sodium, Laser guide stars, Adaptive optics, Fiber lasers, LIDAR, Scattering, Continuous wave operation, Laser scattering, Observatories

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Proceedings Article | 27 June 2006 Paper

Paper

Photometrical scrambling gain and focal ratio degradation in fibers for astronomical instruments

Gerardo Avila, Paul Singh, Maja Albertsen

Proceedings Volume 6269, 62695O (2006) https://doi.org/10.1117/12.671417

KEYWORDS: Optical fibers, Point spread functions, Stars, Astronomy, Spectrographs, Photonics, Telescopes, Sensors, Crystals, Manufacturing

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Proceedings Article | 20 October 2004 Paper

Paper

VLTI technical advances: present and future

Andreas Glindemann, Maja Albertsen, Luigi Andolfato, Gerardo Avila, Pascal Ballester, Bertrand Bauvir, Francoise Delplancke, Frederic Derie, Martin Dimmler, Philippe Duhoux, Emmanuel di Folco, R. Frahm, Emmanuel Galliano, Bruno Gilli, Paul Giordano, Philippe Gitton, Stephane Guisard, Nico Housen, Christian Hummel, Alexis Huxley, Robert Karban, Pierre Kervella, Mario Kiekebusch, Bertrand Koehler, Samuel Leveque, Tom Licha, Antonio Longinotti, Derek McKay, Serge Menardi, Guy Monnet, Sebastien Morel, Francesco Paresce, Isabelle Percheron, Monika Petr-Gotzens, Thanh Phan Duc, Joerg-Uwe Pott, Florence Puech, Fredrik Rantakyro, Andrea Richichi, Cyrus Sabet, Kevin Scales, Markus Schoeller, N. Schuhler, Mario van den Ancker, Martin Vannier, Anders Wallander, Markus Wittkowski, Rainer Wilhelm

Proceedings Volume 5491, (2004) https://doi.org/10.1117/12.551468

KEYWORDS: Telescopes, Stars, Interferometry, Sensors, Adaptive optics, Astatine, Observatories, Near infrared, Mid-IR, IRIS Consortium

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Proceedings Article | 20 October 2004 Paper

Paper

IRIS: an infrared tilt sensor for the VLTI

Philippe Gitton, Samuel Leveque, Gerardo Avila, Thanh Phan Duc

Proceedings Volume 5491, (2004) https://doi.org/10.1117/12.551377

KEYWORDS: IRIS Consortium, Sensors, Telescopes, Actuators, Infrared sensors, Infrared radiation, Atmospheric modeling, K band, Infrared imaging, Mirrors

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Proceedings Article | 30 September 2004 Paper

Paper

The exoplanet hunter HARPS: performance and first results

Gero Rupprecht, Francesco Pepe, Michel Mayor, Didier Queloz, Francois Bouchy, Gerardo Avila, Willy Benz, Jean-Loup Bertaux, X. Bonfils, Th. Dall, Bernard Delabre, Hans Dekker, Wolfgang Eckert, Michel Fleury, Alain Gilliotte, Domingo Gojak, Juan Guzman, Dominique Kohler, Jean-Louis Lizon, G. Lo Curto, Antonio Longinotti, Christophe Lovis, Denis Megevand, Luca Pasquini, Javier Reyes, Jean-Pierre Sivan, Danuta Sosnowska, R. Soto, Stephane Udry, Arno Van Kesteren, Luc Weber, Ueli Weilenmann

Proceedings Volume 5492, (2004) https://doi.org/10.1117/12.551267

KEYWORDS: Stars, Thorium, Spectrographs, Exoplanets, Calibration, Planets, Velocity measurements, Signal to noise ratio, Charge-coupled devices, Observatories

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Proceedings Article | 30 September 2004 Paper

Paper

Performances of HARPS and FEROS fibers in La Silla ESO Observatory

Gerardo Avila, Dominique Kohler, Ernesto Araya, Alain Gilliotte, Wolfgang Eckert

Proceedings Volume 5492, (2004) https://doi.org/10.1117/12.551303

KEYWORDS: Telescopes, Spectrographs, Stars, Observatories, Lanthanum, Optical fibers, Spectral resolution, Head, Sensors, Point spread functions

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Proceedings Article | 7 March 2003 Paper

Paper

Performance verification of HARPS: first laboratory results

Francesco Pepe, Gero Rupprecht, Gerardo Avila, Andrea Balestra, Francois Bouchy, Cyril Cavadore, Wolfgang Eckert, Michel Fleury, Alain Gillotte, Domingo Gojak, Juan Guzman, Dominique Kohler, Jean-Luis Lizon, Michel Mayor, Denis Megevand, Didier Queloz, Danuta Sosnowska, Stephane Udry, Ueli Weilenmann

Proceedings Volume 4841, (2003) https://doi.org/10.1117/12.460777

KEYWORDS: Spectrographs, Telescopes, Sensors, Calibration, Observatories, Lanthanum, Iodine cells, Charge-coupled devices, Cameras, Manufacturing

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Proceedings Article | 7 March 2003 Paper

Paper

Installation and first results of FLAMES, the VLT multifiber facility

Luca Pasquini, Jaime Alonso, Gerardo Avila, Pablo Barriga, Peter Biereichel, Bernard Buzzoni, Cyril Cavadore, Claudio Cumani, Hans Dekker, Bernard Delabre, Andreas Kaufer, Heinz Kotzlowski, Vanessa Hill, Jean-Luis Lizon, Walter Nees, Paolo Santin, Ricardo Schmutzer, A. Kesteren, Manuela Zoccali

Proceedings Volume 4841, (2003) https://doi.org/10.1117/12.458915

KEYWORDS: Calibration, Spectrographs, Telescopes, Spectral resolution, Optical filters, Collimators, Optical fibers, Stars, Charge-coupled devices, Cameras

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Proceedings Article | 7 March 2003 Paper

Paper

Optical fiber link between OzPoz, GIRAFFE, and UVES (FLAMES project)

Gerardo Avila, Isabelle Guinouard, Laurent Jocou, Fabien Guillon, Fabrice Balsamo

Proceedings Volume 4841, (2003) https://doi.org/10.1117/12.461941

KEYWORDS: Calibration, Spectrographs, Telescopes, Optical fibers, Astronomical imaging, Magnetism, Spectroscopy, Observatories, Field spectroscopy, Head

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Proceedings Article | 16 August 2000 Paper

Paper

VIMOS and NIRMOS multi-object spectrographs for the ESO VLT

Oliver LeFevre, Michel Saisse, Dario Mancini, Gianpaolo Vettolani, Dario Maccagni, Jean Picat, Yannick Mellier, Alain Mazure, Jean Gabriel Cuby, Bernard Delabre, Bianca Garilli, L. Hill, Eric Prieto, Clothaire Voet, Luc Arnold, Sylvie Brau-Nogue, Enrico Cascone, Paolo Conconi, Gert Finger, Gotthard Huster, Andree Laloge, Christian Lucuix, E. Mattaini, Pietro Schipani, G. Waultier, Filippo Zerbi, Gerardo Avila, James Beletic, Sandro D'Odorico, Alan Moorwood, Guy Monnet, Javier Reyes Moreno

Proceedings Volume 4008, (2000) https://doi.org/10.1117/12.395513

KEYWORDS: Spectrographs, Sensors, Manufacturing, Astronomical imaging, Collimators, Cameras, Observatories, Galactic astronomy, Optics manufacturing, Mirrors

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The VIRMOS consortium of French and Italian Institutes is manufacturing 2 wide field imaging multi-object spectrographs for the European Southern Observatory Very Large Telescope, with emphasis on the ability to carry over spectroscopic surveys of large numbers of sources. The Visible Multi-Object Spectrograph, VIMOS, is covering the 0.37 to 1 micron wavelength domain, with a full field of view of 4 by 7 by 8 arcmin² in imaging and MOS mode. The Near IR Multi-Object Spectrograph, NIRMOS, is covering the 0.9 to 1.8 microns wavelength range, with afield of view 4 by 6 by 8 arcmin² in MOS mode. The spectral resolution for both instrument scan reach up to R equals 5000 for a 0.5 arcsec wide slit. Multi-slit masks are produced by a dedicated Mask Manufacturing Machine cutting through thin Invar sheets and capable of producing 4 slit masks approximately 300 by 300 mm each with approximately slits 5.7 mm long in less than one hour. Integral field spectroscopy is made possible in VIMOS by switching in the beam specially build masks fed by 6400 fibers coming form a 54 by 54 arcsec² integral field head with a 80 by 80 array of silica micro-lenses. NIRMOS has a similar IFS unit with a field of 30 by 30 arcmin². These instruments are designed to offer very large multiplexing capabilities. In MOS mode, about 1000 objects can be observed simultaneously with VIMOS, with a S/N equals 10 obtained on galaxies with I equals 24 in one hour, and approximately 200 objects can be observed simultaneously with NIRMOS, with a S/N equals 10 obtained don galaxies with J equals 22, H equals 20.6 in 1h at R_eq equals 200. We present here the status of VIMOS, currently under final integration, with expected first light in the summer 2000, together with the final design of NIRMOS presented at the Final Design Review. The VLT-VIRMOS deep redshift survey of more with the final design of NIRMOS presented at the Final Design Review. The VLT-VIRMOS deep redshift survey of more than 150000 galaxies over the redshift range 0 < z < 5 will be undertaken based on 120 guaranteed nights awarded to the project.

Proceedings Article | 16 August 2000 Paper

Paper

Performance report on FEROS, the new fiber-linked echelle spectrograph at the ESO 1.52-m telescope

Andreas Kaufer, Otmar Stahl, Sascha Tubbesing, Preben Norregaard, Gerardo Avila, Patrick Francois, Luca Pasquini, Alessandro Pizzella

Proceedings Volume 4008, (2000) https://doi.org/10.1117/12.395506

KEYWORDS: Telescopes, Spectrographs, Stars, Calibration, Spectral resolution, Charge-coupled devices, Lanthanum, Sensors, Quantum efficiency, Lamps

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Proceedings Article | 16 August 2000 Paper

Paper

FLAMES: a multi-object fiber facility for the VLT

Luca Pasquini, Gerardo Avila, Eric Allaert, Pascal Ballester, Peter Biereichel, Bernard Buzzoni, Cyril Cavadore, Hans Dekker, Bernard Delabre, F. Ferraro, Vanessa Hill, Andreas Kaufer, Heinz Kotzlowski, Jean-Luis Lizon, Antonio Longinotti, S. Moureau, Ralf Palsa, S. Zaggia

Proceedings Volume 4008, (2000) https://doi.org/10.1117/12.395491

KEYWORDS: Spectrographs, Calibration, Telescopes, Spectral resolution, Sensors, Interfaces, Microlens, Contamination, Manufacturing, Optics manufacturing

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Proceedings Article | 11 September 1998 Paper

Paper

Laser guide star facility for the ESO VLT

Domenico Bonaccini, Wolfgang Hackenberg, Gerardo Avila

Proceedings Volume 3353, (1998) https://doi.org/10.1117/12.321652

KEYWORDS: Telescopes, Fiber lasers, Relays, Adaptive optics, Mirrors, Laser guide stars, Observatories, Single mode fibers, Semiconductor lasers, Continuous wave operation

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Proceedings Article | 9 July 1998 Paper

Paper

AVES: an adaptive optics visual echelle spectrograph for the VLT

Luca Pasquini, Bernard Delabre, Gerardo Avila, Domenico Bonaccini

Proceedings Volume 3355, (1998) https://doi.org/10.1117/12.316811

KEYWORDS: Spectrographs, Stars, Lithium, Adaptive optics, Metals, Galactic astronomy, Telescopes, Visual optics, Visualization, Sensors

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Proceedings Article | 9 July 1998 Paper

Paper

Fiber characterization and compact scramblers at ESO

Gerardo Avila, Bernard Buzzoni, Martin Casse

Proceedings Volume 3355, (1998) https://doi.org/10.1117/12.316747

KEYWORDS: Reflection, Prototyping, Telescopes, Fiber characterization, Spectrographs, Fiber optics, Solids, Absorption, Fiber couplers, Observatories

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Proceedings Article | 9 July 1998 Paper

Paper

VLT/UT2 Nasmyth platform instrumentation: a coordinated high-multiplex facility for high-resolution optical and IR spectroscopy

Gerardo Avila, Bernard Delabre, Hans Dekker, Roberto Gilmozzi, Bruno Leibundgut, Luca Pasquini, Alvio Renzini

Proceedings Volume 3355, (1998) https://doi.org/10.1117/12.316763

KEYWORDS: Spectrographs, Stars, Galactic astronomy, Spectral resolution, Telescopes, Multiplexing, Astronomical imaging, Spectroscopes, Molybdenum, Kinematics

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Proceedings Article | 21 March 1997 Paper

Paper

Atmospheric dispersion correction for the FORS Focal Reducers at the ESO VLT

Gerardo Avila, Gero Rupprecht, Jacques Beckers

Proceedings Volume 2871, (1997) https://doi.org/10.1117/12.269000

KEYWORDS: Prisms, Telescopes, Atmospheric corrections, Image quality, Dispersion, Large telescopes, Observatories, Stars, Silica, Image resolution

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Proceedings Article | 21 March 1997 Paper

Paper

FUEGOS status report

Gerardo Avila, Paul Felenbok, Martin Casse, J. Dupin, D. Ferrand, Jean-Pierre Lemonnier, Jean Guerin, R. Schmidt

Proceedings Volume 2871, (1997) https://doi.org/10.1117/12.268995

KEYWORDS: Spectrographs, Telescopes, Spectral resolution, Astronomical imaging, Collimators, Optical instrument design, Cameras, Sensors, Observatories, Large telescopes

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Proceedings Article | 14 June 1995 Paper

Paper

Multiobject spectroscopy with MEFOS at ESO

Gerardo Avila, Jean Guerin, Ana Fernandez, R. Belleger, M. Dreux, R. Schmidt, Gerard Rousset, Paul Felenbok, A. Collin

Proceedings Volume 2476, (1995) https://doi.org/10.1117/12.211847

KEYWORDS: Telescopes, Spectrographs, Spectroscopes, Spectroscopy, Astronomical imaging, Connectors, Cameras, Target acquisition, Optical fibers, Imaging spectroscopy

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